阅读说明：本技术 一种便移生物安全柜 (Portable biological safety cabinet ) 是由 芦慧敏 左永林 朱菁薇 周容 梁媚 张水仙 于 2021-06-29 设计创作，主要内容包括：本发明提供了一种便移的生物安全柜,其特征在于,包括柜体、万向轮、夹持组件、连接杆、刹车组件和解锁机构；柜体设有凹槽,万向轮设有多个并设于柜体底部的周边；夹持组件设有多个并与万向轮一一对应,夹持组件可向地面滑动地设于柜体的凹槽上,并能夹持住万向轮；刹车组件设有两组,一组刹车组件通过一连接杆与一组夹持组件相连,另一组刹车组件分别通过一连接杆与其余夹持组件相连；滑动刹车组件能卡接在柜体上,并带动与之相连的夹持组件夹持万向轮；解锁机构可向地面滑动地设于柜体的凹槽内,滑动解锁机构能推动两组刹车组件,解除对万向轮的夹持。上述的便移生物安全柜能便捷地定点旋转或固定。(The invention provides a movable biological safety cabinet which is characterized by comprising a cabinet body, universal wheels, a clamping assembly, a connecting rod, a brake assembly and an unlocking mechanism, wherein the universal wheels are arranged on the cabinet body; the cabinet body is provided with a groove, and the universal wheels are provided with a plurality of universal wheels and are arranged on the periphery of the bottom of the cabinet body; the clamping assemblies are provided with a plurality of universal wheels and correspond to the universal wheels one by one, and the clamping assemblies can be arranged on the grooves of the cabinet body in a sliding manner towards the ground and can clamp the universal wheels; the brake assemblies are provided with two groups, one group of brake assemblies is connected with one group of clamping assemblies through a connecting rod, and the other group of brake assemblies is respectively connected with the rest clamping assemblies through a connecting rod; the sliding brake component can be clamped on the cabinet body and drives the clamping component connected with the sliding brake component to clamp the universal wheel; the unlocking mechanism can be arranged in the groove of the cabinet body in a sliding mode towards the ground, and the sliding unlocking mechanism can push the two groups of brake assemblies to remove clamping of the universal wheels. The portable biological safety cabinet can be conveniently rotated or fixed at a fixed point.)

1. A movable biological safety cabinet is characterized by comprising a cabinet body, universal wheels, a clamping assembly, a connecting rod, a brake assembly and an unlocking mechanism;

the bottom of the cabinet body is provided with a groove, and the universal wheels are provided with a plurality of universal wheels and are arranged on the periphery of the bottom of the cabinet body;

the clamping assemblies are arranged on the grooves of the cabinet body in a manner of sliding towards the ground and can clamp the universal wheels;

the two groups of brake assemblies are arranged, the brake assemblies can be arranged on the groove of the cabinet body in a sliding manner towards the ground, and one end of each brake assembly is arranged outside the cabinet body; the number of the connecting rods is multiple, one group of the brake assemblies is connected with one group of the clamping assemblies through one connecting rod, the other group of the brake assemblies is connected with the rest of the clamping assemblies through one connecting rod, and the two groups of the brake assemblies are not connected with each other; the sliding brake assembly can be clamped on the cabinet body and drives the clamping assembly connected with the sliding brake assembly to clamp the universal wheel;

the unlocking mechanism can be arranged in the groove of the cabinet body in a sliding mode towards the ground, and the unlocking mechanism can push the two sets of brake assemblies to release clamping of the universal wheels.

2. The portable biosafety cabinet according to claim 1, wherein the clamping assembly comprises a clamping sliding plate, a clamping spring, a pushing rod, a fixing block, a clamping rod and a connecting sheet; the clamping sliding plate is arranged on the groove in a manner of sliding towards the ground and is connected with the inner bottom surface of the groove through the clamping spring, and the clamping sliding plate is connected with the brake assembly through the connecting rod; one end of the push rod is connected with the clamping sliding plate, and the other end of the push rod extends towards the ground; the two fixing blocks are arranged on the grooves on the two sides of the push rod respectively; the two clamping rods correspond to the fixed blocks one by one, the clamping rods are connected to the fixed blocks in a sliding mode, and the sliding direction of the clamping rods and the axial direction of the push rod form an acute angle; the two connecting pieces correspond to the clamping rods one by one, and two ends of each connecting piece are respectively hinged with the clamping rods and the push rods; the pushing rod can be slid to drive the two clamping plates to slide to the ground and approach each other until the universal wheels are clamped.

3. The portable biohazard safety equipment of claim 1, wherein said brake assembly comprises a brake spring, a brake slide plate, a brake link, a catch plate and a brake pedal; the brake sliding plate is arranged on the groove in a manner of sliding towards the ground and is connected with the inner bottom surface of the groove through the brake spring, and the brake sliding plate is connected with the clamping sliding plate through the connecting rod; one end of the brake connecting rod is connected with the brake sliding sheet, and the other end of the brake connecting rod penetrates through the groove to be connected with the brake pedal; the joint piece is located on the brake connecting rod, can the joint be in on the cabinet body, and can by release mechanism promotes and removes the joint.

4. The portable biohazard safety cabinet according to claim 3, wherein said unlocking mechanism comprises an unlocking pedal assembly and a push block assembly; the unlocking pedal assemblies can be arranged on the grooves in a sliding manner towards the ground, and two groups of push block assemblies are arranged in the cabinet body in a relatively sliding manner; slide unblock footboard subassembly can promote two sets ofly the ejector pad subassembly slides, and makes the ejector pad subassembly extrudees close a set of joint piece removes joint state of joint piece.

5. The portable biohazard safety equipment according to claim 4, wherein said unlocking pedal assembly comprises an unlocking spring, an unlocking slide plate, an unlocking link, an unlocking pedal, said pusher assembly comprises an unlocking pusher and a pusher spring; the unlocking sliding plate is arranged in the groove in a manner of sliding towards the ground and is connected with the inner bottom surface of the groove through the unlocking spring, and two inclined planes are oppositely arranged at one end of the unlocking sliding plate, which is far away from the unlocking spring; one end of the unlocking connecting rod is connected with the unlocking sliding plate, and the other end of the unlocking connecting rod penetrates through the groove to be connected with the unlocking pedal; the unlocking push block is slidably arranged in the cabinet body and is connected with the cabinet body through the push block spring; and the inclined surface of the unlocking sliding plate can abut against and push the unlocking push block to extrude a group of similar clamping sheets so as to release the clamping state of the clamping sheets.

Technical Field

The invention relates to the technical field of biological safety cabinets, in particular to a movable biological safety cabinet.

Background

The biological safety cabinet is a box-shaped air purification negative pressure safety device which can prevent aerosol from dissipating when some dangerous or unknown biological particles are contained in the experimental operation and treatment process. The protective screen is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, and is the most basic safety protective equipment in the primary protective screen in the biological safety of laboratories. However, the conventional biosafety cabinet lacks a pulley at the bottom, so that the movement of the biosafety cabinet is very inconvenient, and for this reason, people think that the universal wheels are additionally arranged at the bottom to realize the movement of the biosafety cabinet, but after the universal wheels are additionally arranged, the universal wheels are easy to move due to the characteristics of the universal wheels and are difficult to fix at a required position, and when the universal wheels rotate, the universal wheels are difficult to fix at a certain point for rotation.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a movable biological safety cabinet, which aims to solve the technical problem that the existing biological safety cabinet in the background technology is difficult to rotate and fix at a fixed point when universal wheels are additionally arranged.

In order to solve the technical problem, the technical scheme adopted by the invention is as follows:

a movable biological safety cabinet comprises a cabinet body, universal wheels, a clamping assembly, a connecting rod, a brake assembly and an unlocking mechanism;

the bottom of the cabinet body is provided with a groove, and the universal wheels are provided with a plurality of universal wheels and are arranged on the periphery of the bottom of the cabinet body;

the clamping assemblies are arranged on the grooves of the cabinet body in a manner of sliding towards the ground and can clamp the universal wheels;

the two groups of brake assemblies are arranged, the brake assemblies can be arranged on the groove of the cabinet body in a sliding manner towards the ground, and one end of each brake assembly is arranged outside the cabinet body; the number of the connecting rods is multiple, one group of the brake assemblies is connected with one group of the clamping assemblies through one connecting rod, the other group of the brake assemblies is connected with the rest of the clamping assemblies through one connecting rod, and the two groups of the brake assemblies are not connected with each other; the sliding brake assembly can be clamped on the cabinet body and drives the clamping assembly connected with the sliding brake assembly to clamp the universal wheel;

the unlocking mechanism can be arranged in the groove of the cabinet body in a sliding mode towards the ground, and the unlocking mechanism can push the two sets of brake assemblies to release clamping of the universal wheels.

According to the scheme, the bottom surface of the cabinet body is additionally provided with the universal wheels and the clamping assemblies which correspond to the universal wheels one by one, the brake assemblies are provided with two groups, one group of brake assemblies is connected with one group of clamping assemblies through the connecting rod, and when the cabinet body needs to rotate at a fixed point, the group of brake assemblies is slid to enable the clamping assemblies connected with the group of brake assemblies to clamp the universal wheels, so that the cabinet body can rotate around the universal wheels; when the cabinet body needs to be kept static, the other group of brake assemblies connected with the other clamping assemblies are slid, so that other universal wheels can be clamped, and the cabinet body is kept static.

Further, the clamping assembly comprises a clamping sliding plate, a clamping spring, a pushing rod, a fixed block, a clamping rod and a connecting sheet; the clamping sliding plate is arranged on the groove in a manner of sliding towards the ground and is connected with the inner bottom surface of the groove through the clamping spring, and the clamping sliding plate is connected with the brake assembly through the connecting rod; one end of the push rod is connected with the clamping sliding plate, and the other end of the push rod extends towards the ground; the two fixing blocks are arranged on the grooves on the two sides of the push rod respectively; the two clamping rods correspond to the fixed blocks one by one, the clamping rods are connected to the fixed blocks in a sliding mode, and the sliding direction of the clamping rods and the axial direction of the push rod form an acute angle; the two connecting pieces correspond to the clamping rods one by one, and two ends of each connecting piece are respectively hinged with the clamping rods and the push rods; the pushing rod can be slid to drive the two clamping plates to slide to the ground and approach each other until the universal wheels are clamped. The centre gripping spring provides the pulling force for whole centre gripping subassembly, makes it can not fall down before not being driven by brake assembly, and this structure makes the supporting rod can follow the both sides slant decurrent of universal wheel and be close to and grasp the universal wheel simultaneously for the fixed of universal wheel is more convenient.

Further, the brake assembly comprises a brake spring, a brake sliding plate, a brake connecting rod, a clamping plate and a brake pedal; the brake sliding plate is arranged on the groove in a manner of sliding towards the ground and is connected with the inner bottom surface of the groove through the brake spring, and the brake sliding plate is connected with the clamping sliding plate through the connecting rod; one end of the brake connecting rod is connected with the brake sliding sheet, and the other end of the brake connecting rod penetrates through the groove to be connected with the brake pedal; the joint piece is located on the brake connecting rod, can the joint be in on the cabinet body, and can by release mechanism promotes and removes the joint. . When the cabinet body moves, an operator often moves the cabinet body by holding the cabinet body by hands, and the structure enables the operator to step on the brake pedal by feet to fix the cabinet body or enable the cabinet body to rotate around a point, so that the operation is more convenient.

Further, the unlocking mechanism comprises an unlocking pedal assembly and a push block assembly; the unlocking pedal assemblies can be arranged on the grooves in a sliding manner towards the ground, and two groups of push block assemblies are arranged in the cabinet body in a relatively sliding manner; slide unblock footboard subassembly can promote two sets ofly the ejector pad subassembly slides, and makes the ejector pad subassembly extrudees close a set of joint piece removes joint state of joint piece. The structure ensures that the clamping of the two groups of clamping sheets can be released by sliding one group of unlocking mechanisms, thereby simplifying the operation and the structure and saving the space.

Further, the unlocking pedal assembly comprises an unlocking spring, an unlocking sliding plate, an unlocking connecting rod and an unlocking pedal, and the push block assembly comprises an unlocking push block and a push block spring; the unlocking sliding plate is arranged in the groove in a manner of sliding towards the ground and is connected with the inner bottom surface of the groove through the unlocking spring, and two inclined planes are oppositely arranged at one end of the unlocking sliding plate, which is far away from the unlocking spring; one end of the unlocking connecting rod is connected with the unlocking sliding plate, and the other end of the unlocking connecting rod penetrates through the groove to be connected with the unlocking pedal; the unlocking push block is slidably arranged in the cabinet body and is connected with the cabinet body through the push block spring; and the inclined surface of the unlocking sliding plate can abut against and push the unlocking push block to extrude a group of similar clamping sheets so as to release the clamping state of the clamping sheets. When the static state of the cabinet body is relieved or the cabinet body is rotated and then needs to move continuously, an operator often holds the cabinet body by hands to prevent the cabinet body from sliding arbitrarily, at the moment, the clamped state of the universal wheel is obviously inconvenient to relieve by hand or body operation, the clamped state of the universal wheel can be relieved by stepping on the unlocking pedal, and the operation is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a schematic diagram of a portable biosafety cabinet according to an embodiment of the invention;

FIG. 2 is a schematic view of the portable biohazard safety equipment shown in FIG. 1 with the cabinet body removed;

FIG. 3 is a schematic view of the clamping assembly shown in FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 1;

FIG. 5 is a schematic view of the cabinet shown in FIG. 1;

fig. 6 is a schematic view of the unlocking mechanism shown in fig. 1.

Reference numerals:

1-a cabinet body;

2-universal wheels;

3-a clamping assembly; 31-clamping the sliding plate; 32-a clamping spring; 33-a push rod; 34-fixing block; 35-a clamping bar; 36-a connecting piece;

4-a connecting rod;

5-a brake component; 51-a brake spring; 52-brake sliding plate; 53-brake link; 54-a snap tab; 55-brake pedal;

6-an unlocking mechanism; 61-unlocking the pedal assembly; 611-an unlocking spring; 612-unlocking the sliding plate; 613-unlocking link; 614-unlock pedal; 62-a pusher assembly; 621 unlocking the push block; 622-pusher spring.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 6 together, the present embodiment provides a portable biosafety cabinet, which includes a cabinet body 1, a universal wheel 2, a clamping assembly 3, a connecting rod 4, a brake assembly 5 and an unlocking mechanism 6.

Referring to fig. 1 and 5, a groove is formed at the bottom of the cabinet 1, and a plurality of universal wheels 2 are disposed at the periphery of the bottom of the cabinet 1. It should be understood that the cabinet 1 is placed on the ground, the grooves of the cabinet 1 are provided in plurality, so that the clamping assembly 3, the connecting rod 4, the brake assembly 5 and the unlocking mechanism 6 can slide inside thereof, and the size and depth thereof are determined according to the specific size of each component, and through holes are provided between the grooves to communicate with each other. In this embodiment, the recess that size, shape are different is equipped with threely to be equipped with the through-hole and communicate three inner space, universal wheel 2 is equipped with four, and locates four angles departments of cabinet body 1 bottom surface.

Referring to fig. 1 and 2, the plurality of clamping assemblies 3 are provided and correspond to the universal wheels 2 one by one, and the clamping assemblies 3 are slidably disposed on the groove of the cabinet body 1 toward the ground and can clamp the universal wheels 2. In this embodiment, four sets of clamping components 3 are provided and are located right above the wheel body, and it should be understood that the clamping of the clamping components 3 to the universal wheel 2 is actually the clamping to the wheel body of the universal wheel 2, and the wheel body of the universal wheel 2 is clamped and then can not rotate or roll, that is, the universal wheel 2 is fixed.

Referring to fig. 1 and 2, two sets of brake assemblies 5 are provided, the brake assemblies 5 are slidably disposed on the groove of the cabinet 1 toward the ground, and one end of the brake assembly 5 is disposed outside the cabinet 1; the number of the connecting rods 4 is multiple, one group of brake assemblies 5 is connected with one group of clamping assemblies 3 through one connecting rod 4, the other group of brake assemblies 5 is connected with the rest clamping assemblies 3 through the other connecting rod 4 respectively, and the two groups of brake assemblies 5 are not connected with each other; the sliding brake component 5 can be clamped on the cabinet body 1 and drives the clamping component 3 connected with the sliding brake component to clamp the universal wheel 2.

Referring to fig. 1, 2 and 4, the unlocking mechanism 6 is slidably disposed in the groove of the cabinet 1 toward the ground, and the sliding unlocking mechanism 6 can push the two sets of brake assemblies 5 to release the clamping of the universal wheel 2.

The cabinet body 1 can rotate around the point by fixing one universal wheel 2 through sliding different brake components 5 through the structure, or all other universal wheels 2 are fixed, so that the cabinet body 1 is in a static state. In this embodiment, the three groups of clamping assemblies 3 are connected with each other through a plurality of connecting rods 4 and connected with a group of brake assemblies 5 through the connecting rods 4, and the cabinet body 1 can stop moving or rotating and be in a static state by sliding the brake assemblies 5; the rest group of clamping components 3 are connected with the other group of brake components 5 through the connecting rod 4, the sliding of the group of brake components 5 can clamp the universal wheels 2 close to the sliding of the group of brake components 5, and the cabinet body 1 can be driven to rotate around the universal wheels 2 when the front group of brake components 5 are not slid. Two sets of brake subassembly 5 set up relatively, and release mechanism 6 is located between two sets of brake subassembly 5.

Referring to fig. 1 to 3, in one embodiment, the clamping assembly 3 includes a clamping sliding plate 31, a clamping spring 32, a pushing rod 33, a fixing block 34, a clamping rod 35 and a connecting piece 36; the clamping sliding plate 31 is arranged on the groove in a manner of sliding towards the ground and is connected with the inner bottom surface of the groove through a clamping spring 32, and the clamping sliding plate 31 is connected with the brake component 5 through a connecting rod 4; one end of the push rod 33 is connected with the clamping sliding plate 31, and the other end extends towards the ground; two fixing blocks 34 are arranged and are respectively arranged on the grooves at the two sides of the push rod 33; two clamping rods 35 are arranged and correspond to the fixed blocks 34 one by one, the clamping rods are connected to the fixed blocks 34 in a sliding mode, and the sliding direction of the clamping rods 35 and the axial direction of the push rod 33 form an acute angle; two connecting pieces 36 are arranged and correspond to the clamping rods 35 one by one, and two ends of each connecting piece 36 are hinged with the clamping rods 35 and the push rods 33 respectively; the sliding push rod 33 can drive the two clamping plates to slide towards the ground and approach each other until the universal wheel 2 is clamped. Clamping spring 32 provides the pulling force for whole centre gripping subassembly 3, makes it can not fall down before not being driven by brake subassembly 5, and this structure makes clamping rod 35 can follow the both sides slant decurrent of universal wheel 2 and be close to and grasp universal wheel 2 simultaneously for universal wheel 2's fixed is more convenient. It is worth mentioning that the clamping rod 35 may be preferably divided into a portion at an acute angle with the moving direction of the push rod 33 and a portion parallel to the moving direction of the push rod 33, and the portion parallel to the moving direction of the push rod 33 is provided with a boss at its end to more conveniently clamp the universal wheel 2.

Referring to fig. 2 and 4 together, in another embodiment, the brake assembly 5 includes a brake spring 51, a brake sliding plate 52, a brake link 53, a clamping plate 54 and a brake pedal 55; the brake sliding plate 52 is arranged on the groove in a way of sliding towards the ground and is connected with the inner bottom surface of the groove through a brake spring 51, and the brake sliding plate 52 is connected with the clamping sliding plate 31 through a connecting rod 4; one end of the brake connecting rod 53 is connected with the brake sliding sheet, and the other end of the brake connecting rod passes through the groove to be connected with the brake pedal 55; the clamping sheet 54 is arranged on the brake connecting rod 53, can be clamped on the cabinet body 1 and can be pushed by the unlocking mechanism 6 to release the clamping. When the cabinet body 1 moves, an operator often moves the cabinet body 1 by holding the cabinet body with hands, and the structure enables the operator to step on the brake pedal 55 by feet to fix the cabinet body 1 or enable the cabinet body 1 to rotate around a point, so that the operation is more convenient. It should be understood that the clamping piece 54 has elasticity, and is squeezed by the cabinet body 1 and contracts when sliding in the groove, and when sliding to the through hole between the groove and the groove, the clamping piece recovers deformation and is clamped in the through hole, and the clamping piece can be pushed by the unlocking mechanism 6 to be away from the through hole between the grooves and enter the groove again, so that the clamping state is released. In addition, the horizontal positions of the clamping pieces 54 of the two sets of brake assemblies 5 are preferably the same, so that the unlocking mechanism 6 can simultaneously release the clamping of the two sets of brake assemblies 5.

Referring to fig. 4-6, in other embodiments, the unlocking mechanism 6 includes an unlocking pedal 614 assembly 61 and a push block assembly 62; the unlocking pedal 614 assemblies 61 can be arranged on the grooves in a sliding manner towards the ground, and two groups of push block assemblies 62 are arranged in the cabinet body 1 in a relatively sliding manner; the sliding unlocking pedal 614 assembly 61 can push the two groups of pushing block assemblies 62 to slide, and the pushing block assemblies 62 press the adjacent group of clamping sheets 54 to release the clamping state of the clamping sheets 54. This structure enables the engagement of the two sets of engagement pieces 54 to be released by sliding one set of the unlocking mechanism 6, simplifies the operation and structure, and saves space.

In other aspects, the unlocking pedal 614 assembly 61 comprises an unlocking spring 611, an unlocking sliding plate 612, an unlocking link 613, an unlocking pedal 614, and the push block assembly 62 comprises an unlocking push block 621 and a push block spring 622; the unlocking sliding plate 612 is arranged in the groove in a manner of sliding towards the ground and is connected with the inner bottom surface of the groove through an unlocking spring 611, and two inclined surfaces are oppositely arranged at one end, far away from the unlocking spring 611, of the unlocking sliding plate 612; one end of the unlocking link 613 is connected to the unlocking slide plate 612, and the other end passes through the groove and is connected to the unlocking pedal 614; the unlocking push block 621 is slidably arranged in the cabinet body 1 and is connected with the cabinet body 1 through a push block spring 622; when the unlocking sliding plate 612 is slid, the inclined surface of the unlocking sliding plate 612 can abut against and push an unlocking push block 621, so that the unlocking push block presses the adjacent clamping sheets 54 to release the clamping state of the clamping sheets 54. When the cabinet body 1 is released from a static state or the cabinet body 1 needs to move continuously after being rotated, an operator often holds the cabinet body 1 by hands to prevent the cabinet body 1 from sliding arbitrarily, at the moment, the clamped state of the universal wheel 2 is obviously inconvenient to release by hand or body operation, and the structure can release the clamped state of the universal wheel 2 by stepping on the unlocking pedal 614, so that the operation is more convenient. It should be understood that the unlocking push block 621 is slidably connected in the through hole between the two grooves, the through hole is further provided with a groove on one side close to the brake assembly 5, and the push block spring 622 is preferably provided with two grooves connected with the through hole. It should be further understood that depressing the unlocking pedal 614 causes the unlocking slide plate 612 to push the unlocking push block 621 to press the card tab 54 out of the through hole, thereby completing the releasing of the card tab 54.

Referring to fig. 1-6, the above-mentioned portable biological safety cabinet is used in the following steps:

when the cabinet body 1 needs to be rotated by one point, the movable cabinet body 1 tramples the brake assembly 5 connected with the group of clamping assemblies 3 and rotates around the universal wheel 2 close to the brake assembly as the center; when the rotation or the movement is stopped when needed, the other group of brake components 5 are stepped; when movement is required after stopping or turning, the unlocking mechanism 6 is stepped on.

The portable biological safety cabinet can be conveniently rotated or fixed at a fixed point.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.